/* oopbuysheet.es · bandejas del escáner (nv-) */
@font-face{font-family:'Bricolage';src:url('/assets/fonts/bricolage-latin.woff2?v=a79fdb52d4a5') format('woff2');font-weight:500 800;font-display:swap}
@font-face{font-family:'Azeret';src:url('/assets/fonts/azeret-latin.woff2?v=d090ca8b9080') format('woff2');font-weight:400 600;font-display:swap}
:root{
  --nv-paper:#f6f5f1;--nv-white:#fff;--nv-ink:#16181d;--nv-soft:#4c505a;--nv-line:#d7d4cc;--nv-faint:#ebe8e1;
  --nv-pink:#f21d69;--nv-pink-dk:#b3104a;--nv-pink-bg:#fde7ef;
  --nv-no:#a3231b;--nv-no-bg:#fbe9e7;--nv-ask:#8a5300;--nv-ask-bg:#fff1d6;--nv-line-c:#1e6a43;--nv-line-bg:#e3f2e9;
  --nv-es:#1d4f8f;--nv-es-bg:#e5eef9;--nv-info:#4c505a;--nv-info-bg:#eeede8;
  --nv-head:'Bricolage','Segoe UI',system-ui,sans-serif;
  --nv-body:system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --nv-mono:'Azeret',ui-monospace,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--nv-paper);color:var(--nv-ink);font-family:var(--nv-body);font-size:1.0625rem;line-height:1.66}
a{color:var(--nv-es);text-underline-offset:3px}
a:hover{color:var(--nv-pink-dk)}
:focus-visible{outline:3px solid var(--nv-pink);outline-offset:2px}
h1,h2,h3{font-family:var(--nv-head);line-height:1.14;color:var(--nv-ink);letter-spacing:-.012em}
h1{font-size:clamp(2rem,4.4vw,3.05rem);font-weight:800;margin:.1em 0 .32em}
h2{font-size:clamp(1.42rem,2.6vw,1.95rem);font-weight:750;margin:0 0 .5em}
h3{font-size:1.17rem;font-weight:700;margin:1.25em 0 .4em}
p{margin:.8em 0}
ul,ol{padding-left:1.25em}
li{margin:.32em 0}
small{color:var(--nv-soft)}
code{font-family:var(--nv-mono);font-size:.86em;background:var(--nv-faint);padding:0 .3em}
.nv-wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.nv-skip{position:absolute;left:-9999px;display:inline-flex;align-items:center;min-height:44px;min-width:44px}
.nv-skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:9}

/* cabecera */
.nv-top{background:var(--nv-white);border-bottom:3px solid var(--nv-pink)}
.nv-top .nv-wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.nv-brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--nv-ink);min-height:44px;min-width:0}
.nv-brand img{height:24px;width:auto;flex:none;display:block}
.nv-brand span{display:flex;flex-direction:column;min-width:0;line-height:1.12;border-left:1px solid var(--nv-line);padding-left:12px}
.nv-brand b{font-family:var(--nv-head);font-size:1.02rem;font-weight:750}
.nv-brand i{font-style:normal;font-family:var(--nv-mono);font-size:.72rem;color:var(--nv-soft);letter-spacing:.03em}
.nv-nav{margin-left:auto;min-width:0}
.nv-nav ul{display:flex;flex-wrap:wrap;gap:0 2px;list-style:none;margin:0;padding:0}
.nv-nav li{margin:0}
.nv-nav a{display:inline-flex;align-items:center;min-height:44px;min-width:44px;padding:0 10px;color:var(--nv-ink);text-decoration:none;font-weight:600;font-size:.94rem;white-space:nowrap;border-radius:4px}
.nv-nav a:hover{background:var(--nv-faint);color:var(--nv-ink)}
.nv-nav a[aria-current=page]{box-shadow:inset 0 -3px 0 var(--nv-ink)}

.nv-crumbs{font-size:.88rem;margin:12px auto 0;max-width:1180px;padding:0 24px}
.nv-crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:0 6px}
.nv-crumbs li{margin:0;display:flex;align-items:center;gap:6px}
.nv-crumbs li+li::before{content:'›';color:var(--nv-soft)}
.nv-crumbs a{display:inline-flex;align-items:center;min-height:44px;min-width:44px}

main>section{max-width:1180px;margin:0 auto;padding:0 24px}

/* hero */
.nv-hero{padding-top:36px!important;padding-bottom:16px!important}
.nv-hero h1{max-width:22ch}
.nv-lede{font-size:1.15rem;max-width:64ch;color:var(--nv-soft);margin:.15em 0 1.05em}
.nv-find{display:flex;max-width:780px;background:var(--nv-white);border:2px solid var(--nv-ink);border-radius:10px;overflow:hidden}
.nv-find label{position:absolute;left:-9999px}
.nv-find input[type=search]{flex:1;min-width:0;border:0;background:transparent;padding:17px 18px;font:inherit;font-size:1.06rem;color:var(--nv-ink)}
.nv-find input:focus{outline:2px solid var(--nv-pink);outline-offset:-4px}
.nv-find button{flex:none;border:0;background:var(--nv-pink);color:var(--nv-ink);font-family:var(--nv-head);font-weight:750;font-size:1.06rem;padding:0 30px;min-height:50px;cursor:pointer}
.nv-find button:hover{background:var(--nv-ink);color:#fff}
.nv-jump{display:flex;flex-wrap:wrap;gap:2px 22px;margin:10px 0 0;font-size:.95rem}
.nv-jump a{display:inline-flex;align-items:center;min-height:44px;color:var(--nv-ink)}
.nv-subhero{padding-top:16px!important;padding-bottom:4px!important}
.nv-subhero .nv-lede{margin-bottom:.3em}

/* muro de categorías: tarjeta + resguardo con el número de líneas */
.nv-wall{padding-top:20px!important;padding-bottom:8px!important}
.nv-wall>p{max-width:74ch;margin-top:0}
.nv-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:16px 0 6px}
.nv-card{display:flex;flex-direction:column;min-width:0;background:var(--nv-white);border:1px solid var(--nv-line);border-radius:10px;overflow:hidden;text-decoration:none;color:var(--nv-ink)}
.nv-card:hover{border-color:var(--nv-ink);color:var(--nv-ink)}
.nv-card img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.nv-card .nv-cbody{padding:9px 12px 10px;flex:1}
.nv-card b{display:block;font-family:var(--nv-head);font-size:1.04rem}
.nv-card small{display:block;font-size:.85rem;line-height:1.45;margin-top:2px}
.nv-stub{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:2px dashed var(--nv-line);padding:7px 12px;font-family:var(--nv-mono);font-size:.74rem;letter-spacing:.02em}
.nv-stub em{font-style:normal;font-weight:600}
.nv-stub.v-linea{background:var(--nv-line-bg);color:var(--nv-line-c)}
.nv-stub.v-pregunta{background:var(--nv-ask-bg);color:var(--nv-ask)}
.nv-stub.v-no{background:var(--nv-no-bg);color:var(--nv-no)}

/* bandejas */
.nv-tray{padding-top:46px!important;padding-bottom:6px!important}
.nv-tray>*{max-width:900px;margin-left:auto;margin-right:auto}
.nv-tray>h2{position:relative;padding-left:20px}
.nv-tray>h2::after{content:'';position:absolute;left:0;top:.12em;bottom:.12em;width:7px;border-radius:4px;background:var(--rail,var(--nv-info))}
.nv-tray>h2::before{content:attr(data-v);display:block;font-family:var(--nv-mono);font-weight:500;font-size:.7rem;letter-spacing:.09em;text-transform:uppercase;color:var(--rail,var(--nv-info));margin-bottom:.5em}
.nv-tray.v-no{--rail:var(--nv-no)}.nv-tray.v-pregunta{--rail:var(--nv-ask)}.nv-tray.v-linea{--rail:var(--nv-line-c)}.nv-tray.v-es{--rail:var(--nv-es)}.nv-tray.v-info{--rail:var(--nv-info)}
.nv-tray>.nv-split,.nv-tray>.nv-wide{max-width:1132px}

/* figuras */
.nv-fig{margin:1.4em auto;background:var(--nv-white);border:1px solid var(--nv-line);border-radius:10px;padding:10px}
.nv-fig img{display:block;max-width:100%;height:auto;margin:0 auto}
.nv-fig figcaption{font-size:.86rem;line-height:1.5;color:var(--nv-soft);margin-top:8px;padding-top:8px;border-top:1px solid var(--nv-faint)}
.nv-fig figcaption b{font-family:var(--nv-mono);font-weight:500;font-size:.78rem;color:var(--nv-ink)}
.nv-wide{margin:1.5em auto}
.nv-wide .nv-fig{margin:0}

.nv-split{display:grid;grid-template-columns:55fr 45fr;gap:30px;align-items:stretch;margin:1.6em auto}
.nv-split.nv-flip{grid-template-columns:45fr 55fr}
.nv-split>*{min-width:0}
.nv-split>.nv-fig{margin:0;display:flex;flex-direction:column}
.nv-split>.nv-fig img{width:100%;flex:1 1 auto;min-height:0;object-fit:contain;background:#fff}
.nv-split>.nv-txt>:first-child{margin-top:0}
.nv-split>.nv-txt>:last-child{margin-bottom:0}

/* notas, tablas, listas */
.nv-note{background:var(--nv-white);border:1px solid var(--nv-line);border-left:6px solid var(--nv-es);border-radius:6px;padding:12px 16px;margin:1.2em auto}
.nv-note.nv-red{border-left-color:var(--nv-no)}
.nv-note.nv-amber{border-left-color:var(--nv-ask)}
.nv-note>:first-child{margin-top:0}.nv-note>:last-child{margin-bottom:0}
.nv-tabwrap{overflow-x:auto;margin:1.2em auto;background:var(--nv-white);border:1px solid var(--nv-line);border-radius:8px}
.nv-tab{border-collapse:collapse;width:100%;font-size:.94rem}
.nv-tab caption{text-align:left;font-size:.82rem;color:var(--nv-soft);padding:8px 12px;caption-side:bottom;border-top:1px solid var(--nv-faint)}
.nv-tab th,.nv-tab td{padding:9px 12px;border-bottom:1px solid var(--nv-faint);text-align:left;vertical-align:top}
.nv-tab thead th{font-family:var(--nv-mono);font-weight:500;font-size:.76rem;letter-spacing:.04em;background:var(--nv-faint);border-bottom:2px solid var(--nv-ink)}
.nv-tab td.n,.nv-tab th.n{white-space:nowrap;text-align:right;font-variant-numeric:tabular-nums}
.nv-tab tr.hl td{background:#fff7e6}
.nv-chip{display:inline-block;font-family:var(--nv-mono);font-size:.74rem;padding:1px 8px;border-radius:999px;white-space:nowrap;border:1px solid currentColor}
.nv-chip.v-no{color:var(--nv-no);background:var(--nv-no-bg)}.nv-chip.v-pregunta{color:var(--nv-ask);background:var(--nv-ask-bg)}
.nv-chip.v-linea{color:var(--nv-line-c);background:var(--nv-line-bg)}.nv-chip.v-si{color:var(--nv-line-c);background:#fff}.nv-chip.v-es{color:var(--nv-es);background:var(--nv-es-bg)}
.nv-steps{counter-reset:p;list-style:none;padding:0}
.nv-steps>li{counter-increment:p;position:relative;padding:3px 0 3px 50px;margin:.9em 0}
.nv-steps>li::before{content:counter(p);position:absolute;left:0;top:0;width:34px;height:34px;border-radius:50%;background:var(--nv-ink);color:#fff;font-family:var(--nv-mono);font-weight:500;display:flex;align-items:center;justify-content:center}
.nv-pairs{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--nv-line);border-radius:8px;background:var(--nv-white);overflow:hidden;margin:1.2em auto}
.nv-pairs>div{padding:12px 16px;min-width:0}
.nv-pairs>div+div{border-left:1px solid var(--nv-line)}
.nv-pairs h3{margin-top:0;font-size:1.02rem}
dl.nv-dl{margin:1em auto}
.nv-dl dt{font-weight:700;margin-top:.9em}
.nv-dl dd{margin:.2em 0 0}
.nv-faq details{border-bottom:1px solid var(--nv-line);padding:4px 0}
.nv-faq summary{cursor:pointer;font-weight:700;min-height:44px;display:flex;align-items:center;padding:6px 0}
.nv-faq details>div{padding:0 0 10px}
.nv-more a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}
td a,th a,.nv-dl a,.nv-note a,.nv-txt li a,.nv-tray li a,.nv-fig figcaption a{display:inline-flex;align-items:center;min-height:44px}

/* clasificador */
.nv-tool{background:var(--nv-white);border:2px solid var(--nv-ink);border-radius:12px;padding:18px 20px;margin:1.4em auto}
.nv-tool label{display:block;font-weight:700;margin-bottom:6px}
.nv-tool select{width:100%;min-height:48px;border:1px solid var(--nv-ink);border-radius:8px;background:var(--nv-paper);font:inherit;padding:8px 10px;color:var(--nv-ink)}
.nv-out{margin-top:14px;border-top:1px dashed var(--nv-line);padding-top:12px}
.nv-out h3{margin:.2em 0 .3em;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.nv-out ul{margin:.4em 0}
.nv-meter{display:flex;gap:3px;margin:8px 0 4px;flex-wrap:wrap}
.nv-meter i{display:block;width:16px;height:16px;border-radius:3px;background:var(--nv-faint);border:1px solid var(--nv-line)}
.nv-meter i.on{background:var(--nv-line-c);border-color:var(--nv-line-c)}

/* pie */
.nv-foot{background:var(--nv-ink);color:#e9e8e4;margin-top:64px;padding:34px 0 26px;font-size:.93rem}
.nv-foot a{color:#fff}
.nv-foot a:hover{color:#ffc2d6}
.nv-foot .nv-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px}
.nv-foot .nv-cols>*{min-width:0}
.nv-foot h2{color:#fff;font-size:1rem;margin:0 0 .5em}
.nv-foot ul{list-style:none;margin:0;padding:0}
.nv-foot li{margin:0}
.nv-foot li a{display:inline-flex;align-items:center;min-height:44px}
.nv-foot .nv-legal{border-top:1px solid #3c3f47;margin-top:22px;padding-top:14px;font-size:.84rem;color:#cfcdc8}

@media (max-width:980px){
  .nv-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .nv-split,.nv-split.nv-flip{grid-template-columns:1fr}
  .nv-split>.nv-fig img{flex:none;height:auto}
  .nv-foot .nv-cols{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  body{font-size:1rem}
  .nv-top .nv-wrap{gap:4px}
  .nv-brand span{padding-left:8px}
  .nv-nav{margin-left:0;width:100%}
  .nv-nav a{padding:0 8px;font-size:.9rem}
  .nv-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .nv-pairs{grid-template-columns:1fr}
  .nv-pairs>div+div{border-left:0;border-top:1px solid var(--nv-line)}
  .nv-find button{padding:0 16px}
  .nv-foot .nv-cols{grid-template-columns:1fr}
  .nv-wrap,main>section,.nv-crumbs{padding-left:16px;padding-right:16px}
}

/* Revisión editorial local: petróleo, arena y los colores semánticos originales. */
:root{--nv-ink:#183332;--nv-soft:#4f6461;--nv-paper:#f7f6f0;--nv-white:#fffef9;--nv-pink:#c6dba8;--nv-line:#cbd2c7;--nv-faint:#edf0e7;--nv-info:#285e59;--nv-head:'Bricolage',sans-serif}
body{background:var(--nv-paper)}
.nv-top{border-bottom:1px solid var(--nv-line)}
.nv-top .nv-wrap{padding-top:15px;padding-bottom:15px;gap:12px}
.nv-brand b{font-size:.96rem}.nv-brand i{font-size:.66rem}
.nv-nav a{font-size:.88rem;padding:0 8px}
.nv-menu{display:none;min-height:44px;border:1px solid var(--nv-line);background:var(--nv-white);border-radius:4px;padding:0 16px;font:inherit;color:var(--nv-ink);cursor:pointer}
.nv-hero{padding-top:46px!important;padding-bottom:12px!important}
.nv-hero h1{font-size:clamp(2rem,4.3vw,3.5rem);max-width:26ch;line-height:1.06;letter-spacing:-.035em}
.nv-lede{max-width:69ch;margin:16px 0 24px;line-height:1.6}
.nv-find{border-color:#174f4c;border-radius:3px;max-width:820px;box-shadow:5px 5px 0 #e1e6d7}
.nv-find button{background:#174f4c;color:#fffef9;min-width:110px}
.nv-find button:hover{background:#123e3c}
.nv-jumprow{padding-bottom:8px!important}.nv-jump a{font-weight:600;text-decoration-thickness:1px}
.nv-wall{padding-top:28px!important;padding-bottom:28px!important;border-bottom:1px solid var(--nv-line)}
.nv-wall h2{font-size:1.6rem}.nv-wall>p{max-width:86ch}
.nv-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.nv-card{border-radius:3px;border:0;background:transparent;transition:background .15s ease}
.nv-card:hover{background:#e9eddf}.nv-card img{aspect-ratio:4/3;border-radius:3px;background:#e9e9e3;object-fit:cover}
.nv-card .nv-cbody{padding:12px 1px 14px}.nv-card b{font-size:1.06rem}.nv-card small{font-size:.86rem}
.nv-tray{padding-top:48px!important;padding-bottom:10px!important}.nv-tray>h2{padding-left:0}.nv-tray>h2::before,.nv-tray>h2::after{display:none}
.nv-tray>*{max-width:900px}.nv-tray>.nv-split{max-width:1132px;grid-template-columns:1fr 1fr;gap:36px}
.nv-fig{border-radius:4px;border-color:var(--nv-line);padding:8px}.nv-fig>a{display:block;flex:none}.nv-fig>a img{width:100%;height:auto!important;object-fit:contain}
.nv-fig figcaption{font-size:.85rem}.nv-fig figcaption a{min-height:36px}
.nv-split>.nv-fig{justify-content:center;align-self:start}.nv-split>.nv-txt{align-self:center}
.nv-pairs{border:0;border-top:2px solid #174f4c;border-bottom:1px solid var(--nv-line);border-radius:0;background:transparent;gap:28px}
.nv-pairs>div{padding:24px 0}.nv-pairs>div+div{padding-left:28px}.nv-pairs h3{font-size:1.25rem}
.nv-toc{display:grid;grid-template-columns:1fr 1fr;gap:5px 22px;border-top:1px solid var(--nv-line);border-bottom:1px solid var(--nv-line);padding:16px 0;margin:24px auto}
.nv-toc a{min-height:44px;display:flex;align-items:center}
.nv-step{border-top:1px solid var(--nv-line);margin-top:36px}.nv-step h2{color:#174f4c}.nv-step>.nv-fig{max-width:1132px}
.nv-history{max-width:1132px;margin:22px auto 0;padding:14px 18px;background:#eee9dc;border-left:4px solid #7b6a3c;font-size:.92rem;line-height:1.55}
.nv-tab th,.nv-tab td{overflow-wrap:anywhere}.nv-tabwrap{max-width:100%;width:100%}.nv-out code{overflow-wrap:anywhere}
.nv-foot{background:#173e3a}.nv-foot .nv-cols{grid-template-columns:1.25fr 1fr 1fr 1fr}.nv-foot h2{line-height:1.4}
a:focus-visible,button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a56218;outline-offset:3px}
@media(max-width:1100px){.nv-top .nv-wrap{flex-wrap:wrap}.nv-nav{width:100%;margin-left:0}.nv-history{margin-left:24px;margin-right:24px}}
@media(max-width:800px){.nv-tray>.nv-split{grid-template-columns:1fr;gap:18px}.nv-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.nv-foot .nv-cols{grid-template-columns:1fr 1fr}.nv-pairs{gap:16px}.nv-pairs>div+div{padding-left:16px}.nv-hero h1{max-width:24ch}}
@media(max-width:640px){.nv-top .nv-wrap{justify-content:space-between;gap:8px}.nv-menu{display:block}.nv-js .nv-nav{display:none}.nv-js .nv-nav.is-open{display:block}.nv-nav ul{display:block}.nv-nav a{width:100%;font-size:1rem}.nv-brand img{height:21px}.nv-brand b{font-size:.9rem}.nv-brand i{font-size:.61rem}.nv-brand{gap:8px}.nv-hero{padding-top:30px!important}.nv-hero h1{font-size:2.2rem}.nv-lede{font-size:1.05rem;margin:14px 0 20px}.nv-find button{min-width:84px;padding:0 12px}.nv-find input[type=search]{padding:15px 12px;font-size:1rem}.nv-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.nv-card b{font-size:1rem}.nv-card small{font-size:.8rem}.nv-wall{padding-top:24px!important}.nv-tray{padding-top:34px!important}.nv-toc{grid-template-columns:1fr}.nv-pairs{display:block}.nv-pairs>div{padding:18px 0}.nv-pairs>div+div{padding-left:0;border-left:0;border-top:1px solid var(--nv-line)}.nv-history{margin:16px;font-size:.88rem}.nv-foot .nv-cols{grid-template-columns:1fr}.nv-tool{padding:16px 12px}.nv-tab{font-size:.84rem}.nv-tab th,.nv-tab td{padding:8px}.nv-fig{padding:5px}.nv-step{margin-top:24px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

@media(max-width:640px){.nv-brand img{height:18px}.nv-brand b{font-size:.82rem}.nv-brand i{font-size:.56rem}.nv-brand span{padding-left:6px}.nv-brand{gap:6px}.nv-menu{padding:0 10px;font-size:.92rem}.nv-top .nv-wrap{gap:6px}}